Doubt regarding microcontroller program - Programmers Heaven

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!


Welcome to the new platform of Programmer's Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use its exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.

Doubt regarding microcontroller program

// structure to allow bit field operations, name conversions: PORTA.0 -> PORT_A.b0 PORTB.7 -> PORT_B.b7
typedef struct{ uint8_t b0:1;
uint8_t b1:1;
uint8_t b2:1;
uint8_t b3:1;
uint8_t b4:1;
uint8_t b5:1;
uint8_t b6:1;
uint8_t b7:1; } bits;

// define all the ports of your microcontroller, add more ports depending on the available mcu ports
#define PORT_A (* (volatile bits *) &PORTA)

I want to know what is the last line - #define PORT_A (* (volatile bits *) &PORTA)
in the program doing .
where PORTA is the PORT of a uC

Sign In or Register to comment.